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Vulnerability record · CVE-2016-9919 · published 8 December 2016

CVE-2016-9919: Linux kernel improper input validation vulnerability

Linux · Linux Kernel

The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through 4.8.12 omits a certain check of the dst data structure, which allows remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet.

7.5 CVSS 3.1 High EPSS 5.7% · top 7.3% CWE-20 · Improper input validation
7.5CVSS 3.1 base score, v2 7.8
5.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through 4.8.12 omits a certain check of the dst data structure, which allows remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 Issue TrackingPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/15 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/94824 Third Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 Issue TrackingPatchThird Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 Issue TrackingPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/15 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/94824 Third Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 Issue TrackingPatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-9919), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.